baber/WOPTO huggingface dataset:
Patent IE-61398-B1 (IE)
Title: Mycoplasma vaccine
Inventor: STORM PAUL KAREL
IPC: A61P31/04
Filed: 1988-08-02
Abstract: The present invention is concerned with a nove Mycoplasma vaccine which is avirulent for chickens an is not pathogenic for turkeys. In particular such vaccine contains the Mycoplasma strain Intervet 6/8 (deposit No. I-673 at CNCM, Pasteur Institute, Paris France).
Patent IE-54197-B1 (IE)
Title: Aqueous pour-on formulation
IPC: A01N53/08
Filed: 1982-10-18
Abstract: An aqueous pour-on formulation for localized external application to animals comprises an aqueous carrier, an effective amount of a water-insoluble anti-parasitic agent suspended or dispersed in the aqueous carrier, and a colored dye to enable the application to be observed. Preferred water-insoluble agents include pyrethroids, organophosphorus compounds, formamidines, thiazoles and avermectins. Use of an aqueous system avoids skin reactions sometimes found when non-aqueous solvent systems are used.
Patent IE-43899-B1 (IE)
Title: Improvements in and relating to flexible plastics film packaging materials
IPC: B31B27/00
Filed: 1975-11-25
Abstract: 1528812 Plastics bags UNION CARBIDE CORP 30 Oct 1975 [26 Nov 1974] 44826/75 Heading B8K [Also in Division B5] A plastics bag 11 torn from a strip of flattened tubular oriented plastics film, e.g. biaxially oriented polyethylene or biaxially oriented polyvinylidene chloride, comprises, at the mouth thereof, annealed edge lengths 25 with tabs 19 between adjacent lengths 25. The bag bottom comprises a heat seal 15 and a tail 21 having notches 23 therein. The flattened tubular film may be seamless or may be formed from a folded longitudinally-sealed sheet.
Patent IE-67957-B1 (IE)
Title: Joint between pipe sections
Inventor: PERCEBOIS ALAIN
IPC: F16L21/06
Filed: 1991-08-02
Abstract: To create a locked pipe connection, a locking device (5) bears upon an add-on ring (4) placed on a relief at the end (1) of one (A) of the elements to be joined. Half of the meridian section of at least a portion of this ring's external surface is in the shape of an L, the concavity of the L facing radially inwards. 
<??>Application to automatic connections for cast-iron pipe systems. 
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Patent IE-68851-B1 (IE)
Title: Quinoxalinone derivatives
Inventor: SARGES REINHARD
IPC: C07D241/50
Filed: 1987-01-27
Abstract: A quinoxalinone of the formula:- or a C1-C6 alkyl ester derivative thereof, or a base salt of said acid with a pharmacologically acceptable cation, wherein R is phenyl, hydroxyphenyl, fluorophenyl, chlorophenyl, dichlorophenyl, bromophenyl, C1-C4 alkylphenyl or C1-C4 alkoxyphenyl; and n is one or two. The quinoxalinones are useful in the treatment of diabetes-associated chronic complications.
Patent IE-61967-B1 (IE)
Title: Naphthalenepropionic acid salts
Inventor: KREFT ANTHONY FRANK
IPC: C07D215/14
Filed: 1989-11-01
Abstract: The invention concerns  alpha -methyl-6-(2-quinolinylmethoxy)-2-naphthalene acetic acid, amine salts wherein the amine is an hydroxyalkylamine of formula NR1R2R3 wherein R1 is hydrogen, phenyl, alkyl of 1-6 carbon atoms or hydroxyalkyl of 1-6 carbon atoms, R2 is hydrogen, alkyl of 1-6 carbon atoms or hydroxyalkyl of 1-6 carbon atoms and R3 is hydroxyalkyl of 1-12 carbon atoms. The preferred salts are the tromethamine salts. The amine salts have enhanced activity as compared to the parent acids.
Patent IE-68664-B1 (IE)
Title: Improvements in and relating to snack food products
Inventor: CLARK DAVID NIGEL
IPC: A23L1/164
Filed: 1990-10-17
Abstract: In a process for the manufacture of a snack food product a flat sheet of dough 4 is formed and fed to a pair 7 of embossed rollers arranged both to decrease the piece weight of the sheet of dough and to impart a three-dimensional patterned configuration to the sheet of dough. Individual portions are cut out from the patterned sheet so obtained and fried to form a snack food product having an attractive appearance. <IMAGE>
Patent LU-500258-B1 (LU)
Title: Design method for magnetic induction communication system based on quasi-cyclic ldpc code and communication system
Inventor: SHI WENJUAN
IPC: H03M13/11
Filed: 2021-06-08
Granted: 2021-12-06
Abstract: Aiming at the technical defects of poor anti-interference capability of signal transmission in the existing magnetic induction communication and serious error propagation during wireless communication, the present invention provides a design method for a magnetic induction communication system based on a quasi-cyclic low density parity check (QC-LDPC) code and a communication system. According to the present invention, a discrete particle swarm optimization algorithm and a PEXIT algorithm are adopted to generate a basis matrix of the QC-LDPC code and calculate a set distance between a transmitting coil and a receiving coil in the magnetic induction communication system. The performance of the magnetic induction communication system designed based on the design method in an underground complex channel environment can be effectively improved.
Patent LU-501027-B1 (LU)
Title: Convenient mobile wet filtration dust-removing system for mine
Inventor: LI SHIHANG
IPC: F24F8/125
Filed: 2021-12-16
Granted: 2022-06-16
Abstract: Disclosed is a convenient mobile wet filtration dust-removing system for mine, including a dust absorption assembly, a wet filtration dust-removing assembly and a purification assembly which are mounted on a mobile trolley sequentially from right to left, wherein the dust absorption assembly is used to transmit dust into the wet filtration dust-removing assembly; the wet filtration dust-removing assembly includes a dust-removing box and multiple layers of left and right parallel filtering plates; the pore diameters of the multiple layers of filtering plates are reduced sequentially from right to left, and a spraying assembly rotating around a horizontal axis is arranged in the middle of the filtering plates; and the spraying assembly converts water into water mist and sprays the water mist on the dust for dust reduction, the clean water mist after dust reduction passes through the filtering plate on the left side to be discharged from the left side of the dust-removing box on the left, and the sewage after dust reduction falls into a sewage chamber and is transmitted into the purification assembly for purification and separation. The convenient mobile wet filtration dust-removing system for mine integrates the functions of collecting dust for mine, spraying mist to reduce dust and performing purification, so that layered filtration can be realized, the customization range during spraying for dust reduction is wider, dust attached to the surface of the filtering plate can be effectively removed, and the dust-removing efficiency and the working efficiency can be improved.
Patent LU-501772-B1 (LU)
Title: Preparation method of ZrB2-based SiC reinforced phase ceramics
Inventor: FENG XIAOYAN
IPC: C04B35/64
Filed: 2022-04-01
Granted: 2022-10-03
Abstract: The invention discloses a preparation method of ZrB2-based SiC reinforced phase ceramics, which comprises the following steps: S1: pretreatment of raw material powder: (1) putting zirconium boride powder and silicon carbide powder into a polytetrafluoroethylene ball milling tank, adding ceramic balls and absolute ethyl alcohol for ball milling; (2) filtering the ball-milled slurry, drying in the air first, and then drying to obtain mixed powder; (3) putting the mixed powder, carbon powder and polyethylene glycol solution into the ceramic grinding body, and putting the ground powder into a self-sealing bag for aging; S2: sintering: putting the tablet into a vacuum tube furnace or a vacuum hot pressing furnace for pressureless sintering. The ZrB2-SiC multiphase ceramic with uniform microstructure is prepared by pressureless sintering.
Patent NO-300605-B1 (NO)
Inventor: MCDONOUGH JAMES M
IPC: F23Q2/16
Filed: 1993-02-23
Abstract: A selectively actuatable lighter device is disclosed which includes a body defining reservoir for containing a combustible gaseous medium such as butane, and having a valve arranged to be selectively actuated between a normally closed position and an open position which permits the exit of the gaseous medium. Such lighter can selectively produce sparks at a location proximate to the gaseous medium exit to ignite the gaseous medium. Such lighter device embodies a resiliently releasable latch which normally prevents actuation of a valve actuator to the open position thereby preventing actuation of the valve. The latch is selectively movable to a position out of interference with the valve actuator, so that the gaseous medium may be released and ignited by the sparks. The latch is resiliently structured and mounted such that once a flame is produced and the valve actuator is released, the latch returns to its closed or latched position to prevent actuation of the valve to the open position by prevention of the pivotal motion of the valve actuator. To "re-use" the lighter, the latch must again be moved to an unlatched position so that the valve actuator can be opened for subsequent ignition of the gaseous medium.
Patent NO-309379-B1 (NO)
Inventor: MERCE-VIDAL RAMON
IPC: C07D207/325
Filed: 1996-03-25
Abstract: The present invention relates to the compounds of general formulaused as medicaments possessing therapeutic activity for the treatment of anxiety, psychosis, epilepsy, convulsion, motoricity problems, amnesia, cerebrovascular diseases or senile dementia.
Patent NO-314042-B1 (NO)
Inventor: KENTON KALEVI JOHN
IPC: B01D3/42
Filed: 1996-06-06
Abstract: A method and apparatus for re-refining used oil, in which the used oil is processed in at least one cyclonic vacuum evaporator comprising a void evaporation chamber (4) into which feedstock is tangentially injected, and in which a fraction of the feedstock is condensed in a spray condenser (7) communicating with the evaporation chamber (4). <IMAGE>
Patent NO-324788-B1 (NO)
Inventor: LOHMANN DIETER
IPC: C08G77/46
Filed: 1997-10-03
Abstract: PCT No. PCT/EP96/01255 Sec. 371 Date Dec. 22, 1997 Sec. 102(e) Date Dec. 22, 1997 PCT Filed Mar. 22, 1996 PCT Pub. No. WO96/31791 PCT Pub. Date Oct. 10, 1996The present invention describes a free radical polymerizable segmented macromonomer based on perfluoroelkyl ether, polysiloxane and divalent organic segments. This macromoner can be polymerized and used to form moldings, contact lenses, corneal implants and other biomedical articles.
Patent NO-324531-B1 (NO)
Inventor: BAILEY CAROLE ANNE
IPC: C07D211/60
Filed: 1997-12-05
Abstract: Compositions which increase the bioavailability of proteinase inhibitors are disclosed. The compositions include a pharmaceutically acceptable carrier comprising monoglycerides of medium chain-fatty acids.
Patent NO-311874-B1 (NO)
Inventor: MATSUO GIICHI
IPC: B21B35/10
Filed: 1998-12-22
Abstract: A method and facilities for continuously rolling billet are presented. The method according to the present invention comprises the steps of: i) lightly rolling the end portions of billets (10) successively transported; ii) welding the rear end of preceding billet with the front end of succeeding billet by a flash butt welder (4); iii) removing a burr in the welded part; and iv) rolling the welded billets, making it possible to easily and perfectly remove a burr after flash butt welding and also to descale the portions of billet on which the power supply clamps of the flash butt welder (4) are set. <IMAGE>
Patent NO-331322-B1 (NO)
Title: Plugganordning som er en dispergerbar pluggdel og en fluidumbarriere
Inventor: VICK JR JAMES D
IPC: E21B33/12
Filed: 1999-02-19
Abstract: En plugganordning (10) innbefatter en dispergerbar pluggdel (18) og en fluidumbarriere (50). I en utførelse som her er beskrevet, blir en fluidumbarriere (50) benyttet til å hindre forurensning av et fluidum som inneholdes i en plugganordning (10). Fluidet er således tilgjengelig til bruk ved dispergering av en pluggdel (18) av plugganordningen (10) uansett de typer av andre fluider som finnes i brønnen der anordningen (10) er installert. Forskjellige utformninger av fluidumbarrierer (50) er også gjengitt.
Patent NO-309576-B1 (NO)
Title: Anordning for bruk ved behandling eller fremstilling av væsker
Inventor: DAHLE ARNE BERNT
IPC: C12M1/00
Filed: 1999-04-13
Abstract: Anordning for bruk ved behandling/fremstilling av nytelses-eller næringsvæsker eller terapeutisk virksomme væsker, hvor det benyttes en mikroorganisme, for eksempel gjærsopp, for fermentering av en sukkerholdig væske (2) i en tank (1), om-fattende en rørlignende beholder (3) som er innrettet til å plasseres i tanken (1), og som er gjennomstrømbar for væske og forsynt med en nedre innløpsåpning og en øvre utløpsåp-ning. Et gjærrom (7) eller en gjærholder (11) i den rørlig-nende beholder (3) er innrettet til å holde gjærceller på plass innenfor det innvendige, avgrensede gjærrom/-hoIder og samtidig kunne la sukkerholdig væske passere i kontakt med gjærcellene. Når karbondioksidbobler som dannes i den rørlig-nende beholder (3) stiger mot væskens (2) overflate, skapes det en oppadgående væskestrøm i den rørlignende beholder (3) og en nedadgående væskestrøm utenfor den rørlignende beholder (3). På denne måte utvikler det seg en effektiv væskesirkula-sion som foregår i det vertikale plan.
Patent AT-506344-B1 (AT)
Title: Verfahren und vorrichtung zur steuerung der zutrittskontrolle
IPC: G07C9/00
Filed: 2008-01-30
Granted: 2015-06-15
Abstract: Bei einem Verfahren zur Steuerung der Zutrittskontrolle mit SchIießeinheit, insbesondere SchIössern, und elektronischen Schlüsseln, bei welchem Zutrittsberechtigungen in einer zentralen Recheneinheit gespeichert und verwaltet werden, die Schlüssel entsprechend der jeweiligen Zutrittsberechtigung mit Berechtigungsinformationen für eine vorgegebene Auswahl an Schließeinheiten programmiert werden, die Berechtigungsinformationen im FaIIe eines Zutrittswunsches drahtlos von einem Schlüssel an eine Schließeinheit gesendet werden und in der Schließeinheit in Abhängigkeit von den empfangenen Berechtigungsinformationen die Zutrittsberechtigung ermittelt wird, umfasst die Programmierung eines SchlüsseIs das Senden der Berechtigungsinformationen über ein drahtloses Telekommunikationsnetz an ein drahtloses mobiles Telekommunikationsgerät und das Übermitteln der vom mobilen Telekommunikationsgerät empfangenen Berechtigungsinformationen an einen Speicher des Schlüssels und die Ermittlung der Zutrittsberechtigung in der Schließeinheit (13) umfasst zusätzlich den Vergleich einer vom SchlüsseI empfangenen Schlüsselkennung mit einer in der SchIießeinheit (13) gespeicherten Schlüsselkennungsliste, wobei bei Übereinstimmung der empfangenen Schlüsselkennung mit einer Schlüsselkennung aus der Schlüsselkennungsliste der Zutritt verwehrt wird, wobei die Schlüsselkennungsliste in der zentralen Recheneinheit (1) gespeichert und verwaltet wird, über das drahtlose Telekommunikationsnetz (4) an mobile Telekommunikationsgeräte (5) übermittelt, drahtlos von einem Schlüssel an die Schließeinheit (13) gesendet und in der Schließeinheit (13) gespeichert wird.
Patent AT-515665-B1 (AT)
Title: Wasserfall im Kraftwerks-Zuleiterohr
Inventor: SAMONIG ROBERT MAG
IPC: E02B9/06
Filed: 2014-06-23
Granted: 2015-11-15
Abstract: Kraftwerks-Zuleitungsrohr, das die Form eines langgezogenen Trichters aufweist und mit Wasser (2) und Luft (3) gefüllt ist, dessen Querschnitt in Fließrichtung des Wassers abnimmt und dass am Zuleitungsrohr (1) an der Oberseite zur Be- und Entlüftung Öffnungen (4) angeordnet sind.
Patent AT-512981-B1 (AT)
Title: Tragplatte für eine Heizvorrichtung
IPC: F24B1/04
Filed: 2012-06-04
Granted: 2014-05-15
Abstract: Modulare Tragplatte (1) für eine Heizvorrichtung, mit einem sich in eine Längsrichtung (L) erstreckenden Grundkörper (2), der einen von einem Fußteil (3) und einer Schulter (4) begrenzten Mittelteil (5) aufweist, wobei sich der Fußteil (3) und die Schulter (4) in der Längsrichtung (L) vom Mittelteil (5) weg verjüngen und eine Heizvorrichtung mit wenigstens zwei Tragplatten (1).
Patent BG-61273-B1 (BG)
Title: Method for the preparation of desmycosine and itsderivatives
Inventor: STOJANOVA NADKA J
IPC: C12P19/62
Filed: 1992-11-09
Abstract: The desmycosine - tylosin B and its derivatives findapplication as medicamentous preparations in the veterinarymedicine. By the method, the strain Streptomyces fradiae-NA34 isproduced by orientated mutagenesis with N-methyl, N-nitro,N-nitrosoguanadin and subsequent selection, which is profoundfermentation of nutrients containing assimilation hydrocarbons,sources of nitrogen and mineral salts, in aerobic conditions,accumulated desmycosine in the culture liquid from 2 to 4 g/l.
Patent BG-61656-B1 (BG)
Title: Composition and method for making composite powder metallurgy products
Inventor: RAZKAZOV NIKOLAJ I
IPC: C22C29/14
Filed: 1995-07-19
Abstract: The composition and the method are used in powder metallurgyfor making plate rings for heating devices, solid articles ofstainless powders, friction materials and others. They simplifythe powder metallurgical processes in making of complex profiledcomposite materials of preliminary prognosticated properties. Thecomposition contains, in wt.%, the following components: trinickelboride from 10 to 90, iron boride from 3 to 30, nickel silicidefrom 5 to 30 and optionally chromium carbide from 5 to 80,titanium carbide from 3 to 30, molybdenum carbide from 2 to 20,tungsten carbide from 2 to 60, hard alloy with 4 to 10% cobaltfrom 5 to 90, nickel from 5 to 50, cobalt from 1 to 20, copperfrom 5 to 15, iron from 5 to 90 and tin from 1 to 10. Sintering ismade in the presence of liquid eutectic phase.
Patent BR-0002786-B1 (BR)
Inventor: KAUFHOLD WOLFGANG
IPC: C08L75/04
Filed: 2000-07-14
Abstract: A flexible, elastic polyurethane film (I) is prepared by sintering of a thermoplastic polyurethane (TPU) or TPU mixture powder, having a melt index (190 degrees C, 21.1 N) of 20-100, a relative solution viscosity of 1.15-1.45 and a Shore A hardness of 80-98, by means of a heated mold. A flexible, elastic polyurethane film (I) is prepared by sintering of a thermoplastic polyurethane (TPU) or TPU mixture powder, having a melt index (190 degrees C, 21.1 N) of 20-100, a relative solution viscosity of 1.15-1.45 and a Shore A hardness of 80-98, by means of a heated mold. The TPU powder is prepared by reaction of (A) aromatic and/or aliphatic diisocyanates (B) a linear, hydroxyl terminated polyol having an average mol. wt. of 600-5,000 g/mol and containing an average of 1.8-3.0 Zerewitinoff active hydrogen atoms per molecule. whereby the equivalent ratio of NCO groups to the sum of NCO reactive groups is 0.9:1.0-1.1:1.0.
Patent BR-PI0105525-B1 (BR)
Title: aparelho e método de controle de operação de um compressor linear
Inventor: PARK JIN KOO
IPC: F04B17/00
Filed: 2001-11-28
Abstract: "aparelho e método de controle da operação de compressor linear por meio de reconhecimento de padrão". em um aparelho e um método de controle de operação de um compressor linear com um reconhecimento de padrão de operação de um compressor com eficiência ideal pelo reconhecimento de um traço sobre um gráfico sobre a relação entre corrente e deslocamento como um padrão e pela detecção da variação do padrão, o aparelho de controle de operação do compressor linear com o reconhecimento de padrão inclui uma unidade de cálculo de deslocamento que calcula o deslocamento alimentado pela corrente detectada na unidade de detecção de corrente e pela voltagem detectada na unidade de detecção de voltagem, a unidade de reconhecimento de padrão sendo alimentada pelo deslocamento produzido pela unidade de cálculo de deslocamento e a corrente produzida pela unidade de detecção de corrente e que detecta um padrão de acordo com um traço correspondente ao deslocamento e à corrente, uma unidade de controle de curso sendo alimentada por um padrão pela unidade de reconhecimento de padrão e que dá saída a um sinal de controle de chaveamento em função do padrão alimentado, e uma unidade de circuito elétrico alimentada pelo sinal de controle de chaveamento produzido pela unidade de controle de curso e que dá saída a uma certa voltagem ao compressor linear, de acordo com o que é possível realizar um controle de tdc de um pistão, considerando um erro devido a características de falta de linearidade, melhoram a eficiência de operação de um compressor linear e têm uma região de controle ampla e precisa.
Patent CH-698770-B1 (CH)
Inventor: SPIEGEL UWE
IPC: A61N5/06
Filed: 2009-03-02
Abstract: Bestrahlungsgerät insbesondere für die Lichttherapie mit einem eine Lichtquelle (11) enthaltenden Bestrahlungskopf (10), dessen Abstand von einer Bestrahlungsfläche (21) veränderbar ist und der mit einer einer Abstandsmessung dienenden Abstandsmesseinrichtung kombiniert ist, wobei die Abstandsmesseinrichtung wenigstens zwei beidseitig und symmetrisch zur Lichtquelle (11) vorgesehene Strahler (12´, 12´´) aufweist, welche jeweils einen eng gebündelten Lichtstrahl (13) erzeugen und derart am Bestrahlungskopf (10) angeordnet sind, dass sich ihre Strahlen (13) auf der Bestrahlungsfläche (21) in einem Punkt kreuzen, wenn sich der Bestrahlungskopf (10) im vorgegebenen Abstand (a2) von der Bestrahlungsfläche (21) befindet.
Patent CH-712332-B1 (CH)
Title: Beleuchtungseinrichtung.
Inventor: MARKUS FRAEFEL
IPC: F21V33/00
Filed: 2016-04-11
Abstract: Die Beleuchtungseinrichtung umfasst einen Hohlraum, der von einer Grundplatte (2), einem primären Wandabschnitt (5a) mit Leuchtelementen (7a), einem sekundären Wandabschnitt (5b) und einer Deckplatte (1) begrenzt ist. Die Deckplatte (1) umfasst einen lichtdurchlässigen Bereich (1a) und einen lichtundurchlässigen Bereich (1b). Im Hohlraum ist mindestens ein Reflektor (9) so angeordnet, dass von den Leuchtelementen (7a) emittiertes Licht durchmischt und eine gleichmässige Lichtverteilung im lichtdurchlässigen Bereich (1a) bewirkt wird.
Patent CH-709545-B1 (CH)
Title: Dichtungseinheit für eine Rohranordnung.
Inventor: SASCHA WENGER
IPC: F16L25/10
Filed: 2014-04-17
Abstract: Eine Dichtungseinheit (1) für eine Rohranordnung (2) mit einem Innenrohr (3) und einem Aussenrohr (4) mit jeweils zumindest annähernd runden Querschnitten umfasst zum gegenseitigen Abdichten von Innenrohr (3) und Aussenrohr (4) eine oder mehrere ringförmige Dichtungen (5, 5´). In einem Einbauzustand dieser Rohranordnung (2) ist das Innenrohr (3) zumindest annähernd koaxial zum Aussenrohr (4) und zumindest teilweise innerhalb des Aussenrohrs (4) angeordnet und die eine oder mehreren ringförmigen Dichtungen (5, 5´) liegen am Innenrohr (3), am Aussenrohr (4), oder am Innenrohr (3) und am Aussenrohr (4) dichtend an. Die Dichtungseinheit (1) umfasst zudem einen Anpressring (6) mit mindestens einer Kontaktfläche (18), die zum Bereitstellen einer Halteverbindung zwischen dem Anpressring (6) und der einen oder den mehreren ringförmigen Dichtungen (5, 5´) ausgebildet ist. Im Einbauzustand der Rohranordnung (2) presst der Anpressring (6) diese eine oder mehreren ringförmigen Dichtungen (5, 5´) gegen das Innenrohr (3), gegen das Aussenrohr (4), oder gegen das Innenrohr (3) und das Aussenrohr (4) an. Dieser Anpressring (6) oder eine der ringförmigen Dichtungen (5, 5´) umfasst mindestens ein Halteelement (7), das als Befestigung zum Verbinden der Dichtungseinheit (1) mit dem Innenrohr (3) oder mit dem Aussenrohr (4) ausgebildet ist.
Patent CH-711048-B1 (CH)
Title: Spannmodul, insbesondere für eine Spannvorrichtung zur Bearbeitung von Werkstücken.
Inventor: BEAT BAUMGARTNER
IPC: B25B1/24
Filed: 2015-05-07
Abstract: Die Erfindung betrifft ein Spannmodul, insbesondere eine Spannvorrichtung, vorzugsweise für Zentrierspannvorrichtungen zur Bearbeitung von Werkstücken, bestehend aus einem als Schlitten ausgebildeten Grundkörper (4) mit mindestens einer daran befestigten Spannbacke, wobei der Grundkörper (4) in Richtung der Verspannkraft mit einer durch diesen führbaren Spindel (7) verstellbar ist, die in einer im Grundkörper (4) bei eingeführter Spindel in Achsrichtung der Spindel begrenzt verschiebbaren Kulisse (9) eingeschraubt ist. Zwischen der Kulisse (9) und dem Grundkörper (4) sind in Richtung der Verspannkraft wirksame Vorspannfedern angeordnet, durch deren Federkraft sich der Grundkörper (4) mit der daran befestigten Spannbacke selbsttätig bei Nachlassen der Verspannkraft nachstellt.